Description The Milwaukee 1/4 in. High-Speed Steel Hole Saw Arbor Pilot Drill Bit is used with hole saws to cut through wood and metal. It is designed to fit Milwaukee Arbors 49-56-7010 and 49-56-7150. Requires minimum chuck size of 3/8 in.PRODUCT DETAILS: Requires minimum chuck size of 3/8 in. Designed for use with Milwaukee arbors 49-56-7010 and 49-56-7150 General cutting of wood and metal High-speed steel 1 per pack